Keys to the genera and subgenera of the bee subfamily Euryglossinae (Hymenoptera: Colletidae)

Revised keys are presented to the genera and subgenera of the Australian bee subfamily Euryglossinae (Colletidae). These are meant to accommodate changes in the classi fi cation of the subfamily, with the following new taxa established: Augohesma gen. n., Austriperditilla gen. n., Chlorohesma subgen. n. (in Callohesma Michener), Euthyhesma subgen. n. (in Callohesma Michener), Oxyhesma subgen. n. (in Callohesma Michener), and Zethohesma gen. n. Checklists are also provided of currently recognized species in the subfamily, with two replacement names appended as Euryglossina ( Quasihesma ) lamellata nom. n. and Euryglossina ( Quasihesma ) cairnsensis nom. n.